Re: [Gumstix-users] Strange C++ Errors (???)

[Cyril B. <cyr...@gm...>]

Hello,

We had the same kind of error when we tryed to cross-compile our program
We resolved the error adding "this->" each time the compilator failed.

But, I made a reply to warn you about another thing!=20
Be careful of the type "char". We spend time to find that the crosscompiler=
=20
consider the char as unsigned by default on ARM.
(The gcc i386 compiler consider the char as signed).

If you use chars in your program, you can:
- modify your code to replace the "char" by "signed char";
- typedef a type like "s_char" and replace the "char" by "s_char";
- the quickest solution (the one we choosed) is to add the flag=20
"-fsigned-char" to "arm-linux-gcc".

Now, it's working on the ARM like on the i386!

Cyril


On 7/21/05, Athanasios Anastasiou <th...@at...> wrote:
>=20
> Hello All
>=20
> I am trying to port a program from i386 to arm for gumstix. In my make
> file i have a CC variable which i turn to g++ for my development machine
> and arm-linux-g++ for the gumstix. (The make file is rather simple.)
>=20
> When i set the variable to g++ (The native compiler gcc 3.3.3) it
> compiles without any warnings or errors in my labs machine which has
> Suse 9.1.
>=20
> However when i set it to arm-linux-g++ i get specific errors which i
> suspect are due to the default configuration (or rather default
> assumptions) of g++.
> For example, if i have a member variable which i assign to a value in a
> member function of a class i have to add the this-> operator infront of
> it or else it does not recognise it as the member variable of the class
> (Which is a bit strange because the native g++ has no problem with this).
>=20
> This is enhanced by another fact. The exact same errors appear when i
> try to compile my program in a Fedora C4 system (for the i386 case).
>=20
>=20
> How can i find the default arguments- if any- that are passed to the
> compiler that is in the gumstix-buildroot?
>=20
> All the best.
> thanOS
>=20
>=20
> -------------------------------------------------------
> SF.Net email is sponsored by: Discover Easy Linux Migration Strategies
> from IBM. Find simple to follow Roadmaps, straightforward articles,
> informative Webcasts and more! Get everything you need to get up to
> speed, fast. http://ads.osdn.com/?ad_id=3D7477&alloc_id=3D16492&op=3Dclic=
k
> _______________________________________________
> gumstix-users mailing list
> gum...@li...
> https://lists.sourceforge.net/lists/listinfo/gumstix-users
>